Motor-vehicle.



m. 756,152. PATENTBDMAR. 29, 1904. H. s'. BALDWIN.

MOTOR VEHIGLE.

APPLICATION FILED DEO. B. 1903.

N0 MODEL.

'j UNITED STATES Patented March 29, 1904.

PATENT OEEicE.

HENRY S. BALDWIN, O'E LYNN, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO MORTON TRUSTl COMPANY, TRUSTEE, A CORPORA- TION OE NEW YORK.

MoToRv-'vEl-IIQLE.

SPECIFICATION forming part of Letters atent-No. 756,152, dated March 29, 1904.

Original application filed .Tune .22, 1899, Serial No. 721,504. No. 184,254..

To a/ZZ whom it may concern:

Be it known-that I, HENRY S. BALDWIN, a citizenl of the United States, residing in Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Motor-Vehicles, of which the following is a specication, reference being had tothe accompanying drawings, forming a part hereof, this application being a division of an application filed J une 22, 1899, and serially numbered 7 21,504.

This invention relates to the driving-trucks of motor-vehicles-that isto say, those portions of the running-gear of motor-vehicles which include or embody the driving mechanism and support the driving-wheels, the invention being more particularly concerned with the brake in its relation. to the other parts of the driving-gear.

The object in View is to provide for the support of the brake with reference to the driving-gear, so as to diminish the shock when the brake is first applied and also to facilitate manufacture and simplify construction.

The invention will be more fully described hereinafter with reference to the accompanying drawings, in which for purposes of explanation it is illustrated as embodied in a convenient and practical structure.

In the drawings, Figure 1 is a plan view of adriving-truck which -embodies the invention, the side springs being partly broken out to show the parts beneath and the brake-drum, brake-band, and driving-gear on one of the wheels being shown in section, while the driving-gear alone on the other wheel is shown in section with the brake-band in plan view; and Fig. 2 is a view in side elevation of some of i the parts shown in Eig. 1 with the vehiclewheels omitted and one of the driving-gears partly shown in section.

In the structure chosen for illustration in the drawings the body A of the vehicle has secured thereto the transverse springs B, to the free ends of which are connected in the usual manner the side springs B. The axle C-in this instance a fixed or non-revoluble axle-'is secured to the side springs B and has Divided and this application filed December 8, 1903. Serial (No model.)

the driving-wheels D of the vehicle mounted to rotate thereon. The driven gears E may be secured directly to the respective drivingwheels and are conveniently formed as gearrims on a gear-plate E', although it will be obvious that sprockets may be employed instead of the gear-rims upon the gear-plate E'.

For the proper action of the brake it is desirable that the brake-drum should be concentric with the wheel or other part to which it is applied, and to attain this result in a convenient manner it is formed as a rim E2, within and inthe same plane asthe rim E and integral with the gear-plate E', the latter thus carrying a relatively large driving-gear and a relatively small brake-drum. This construction insures the concentricity of the brake-drum and the gear and permits these two parts to be secured together and-by the same means to the driving-wheel of the vehicle, so that concentricity of one insures the concentricity of the other.

The motor Gr', the driving-pinions H, which mesh With the driving-gears E, but which in case sprockets are employed instead of the K gear-rims will be connected to the gears E by chainsthe shafting G, which carries the pinions H, and other parts of the driving mechanism are supported by a casing or trussframe I. The latter is supported at or near its ends by arms K, which are rigidly secured at one end to the axle O and whose other ends Venter sockets t' in the casing. In this way the driving-gear pinions H are always held in absolute alinement and imperfect meshing or twisting of the pinions with respect to the driving-gear E is prevented. Furthermore, with this construction the motor and other parts of the driving mechanism are rotarily supported about the aXis of the driving-wheel as a center, thus preventing shocks upon the intermeshing gears such as ordinarily occur in the starting of vehicles.

A transverse bar B is connected at its ends to the side springs B', and an arm I', secured to the casing I, substantially at its middle point, is attached to this suspender-bar B2, whereby the torque of the driving-wheels is transmitted to the suspender-bar, from the suspender-bar to the transverse spring B, and from the latter to the body of the vehicle. It will thus be seen that the truss-frame is thus interconnected with the spring system, and any weight or jar upon this frame is absorbed by the spring system.

The brake-band L, which embraces the brake-drum E2 and is operated by any suitable means, as by the lever and link represented at L', is anchored to a rotarily-yielding part. In this instance it is shown as anchored at l to the casing or truss-frame I, which, as already described, is free to yield rotarily to a limited extent about the axis of the driving-gears, and therefore of the brakedrums, as a center and which practically forms a part of the yielding framework of the truck. If the brake-band of a vehicle of this description is anchored to a rigid and unyielding support,v the shock produced when the brake is applied suddenly is considerable, and it is well to avoid it. In the present construction it will be obvious that shocks to the driving mechanism, both at the starting and stopping of the vehicle, are avoided, and the driving mechanism is in this Way preserved from considerable strain and distortion.

I claim as my inventionl. In a motor-vehicle, the combination with a driving-wheel, an axle, a motor, means interconnected with the spring system to support the motor in a rotarily-yielding manner about the axle and adriving-pinion connected with the motor, of a driving-gear and brakedrum applied to said wheel in the same plane, and a brake embracing said drum, substantially as shown and described.

2. Ina motor-vehicle, the combination with the driving-wheel of a gear-plate secured to said wheel and having integral therewith a driven gear and a brake-drum, said brakedrum being within and in the same plane with said driven gear, substantially as shown and described.

3. In a motor-vehicle, the combination with the driving-wheel, of a gear-plate secured to said wheel and having integral therewith a relatively large driven gear and a relatively small brake-drum, substantially as shown and described.

4. In a motor-vehicle, the combination with the driving-wheels, axle and the frame ofthe truck, said frame being interconnected with the spring system and rotarily yielding about the axis of the wheels as a center, of a brakedrum applied to one of the wheels, and a brake embracing said drum, substantially as shown and described.

5. In a motor-vehicle, the combination with the driving-wheels, axle and the frame of the truck, said frame being interconnected with the spring system and rotarily yielding about the axis of the wheels as a center, of a brakedrum applied to one of the wheels, and a brake embracing said drum and anchored at one side of the axle, substantially as shown and described.

6. ln a motor-vehicle, the combination with the driving-wheel of a gear-plate secured to said wheel and having integral therewith an internal driven gear and a brake-drum within and in the same plane with said internal driven gear, and an external brake-band for said brake-drum, substantially as shown and dcscribed.

7 In a motor-vehicle, the combination with the driving-wheels, axle and the frame of the truck, said frame being interconnected with the spring system and rotarily yielding about the axis of the wheels as a center, of a brakedrum applied to one of the wheels, and a brake embracing said drum and anchored to the rotarily-yielding frame, substantially as shown and described.

This specification signed and witnessed this 3d day of December, A. D. 1903.

HENRY S. BALDWIN.

In presence of- DUGALD McK. McKILLor, JOHN J. WALKER. 

